15 Best Solar Companies in Longmont, CO (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Longmont based on:
Customer review scores- Service area for Longmont, CO
- Company policies and services offered
- Accreditations and certifications
Please enter a valid 5-digit zip code!
Average Longmont homeowner saves $1,563/year with solar panels
Why you can trust EcoWatch
Best Solar Companies in Longmont
If you’re trying to find the best solar companies in Longmont, going through so many options can be overwhelming, but it can pay off since adopting solar energy can offer so many good perks. One of the pros of living in Longmont is you have access to plenty of the best solar panel installation companies in the nation.
As you set out on your search for the best solar companies in Longmont, you might realize that there are a great number of providers to choose from. So, we’ve accumulated an expertly curated list of the top solar companies in the area.To get a sense of what it would cost to put solar panels on your roof, you can click the button below to be connected to a certified installer near you.
EcoWatch Rankings for Solar Companies in Longmont
Vanguard Solar Services
Prompt Service Delivery- Informative Resources
- Reliable Customer Support
- Free Quotes
Limited information available on website
Services Offered
Panel Installation- Consultation
- System Decommissioning
- Cleaning and Maintenance
MH Electrical and Solar
- Free Quotes
- Prompt Service Delivery
- Clear Pricing Policy
- Reliable Customer Support
- Informative Resources
- Limited information available on website
Services Offered
- Consultation
- Cleaning and Maintenance
- Battery Storage
- Panel Installation
- Tesla Powerwall
Solar Wave
- Free Quotes
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Financing Assistance
- Cleaning and Maintenance
- Grid-Tied Solar System
- Off-Grid Solar Systems
- Consultation
- Panel Installation
- Battery Storage
Next Energy Solar
- Informative Resources
- Clear Pricing Policy
- Reliable Customer Support
- Free Quotes
- Limited information available on website
Services Offered
- Cleaning and Maintenance
- Panel Installation
Columbine Roofing & Solar
- Free Quotes
- Reliable Customer Support
- Informative Resources
- Limited information available on website
Services Offered
- Financing Assistance
- Skilled Repairs
- Consultation
- Panel Installation
Independent Power
- Reliable Customer Support
- Informative Resources
- Prompt Service Delivery
- Free Quotes
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Battery Storage
- Panel Installation
- Off-Grid Solar Systems
- Financing Assistance
Apollo Energy
- Reliable Customer Support
- Informative Resources
- Free Quotes
- Limited information available on website
Services Offered
- Panel Installation
- System Decommissioning
Alt E Wind & Solar, Ltd.
- Informative Resources
- Reliable Customer Support
- Clear Pricing Policy
- Free Quotes
- Limited information available on website
Services Offered
- Financing Assistance
- Consultation
- Panel Installation
- Cleaning and Maintenance
ARE Solar
- Informative Resources
- Clear Pricing Policy
- Reliable Customer Support
- Free Quotes
- Limited information available on website
Services Offered
- Skilled Repairs
- Cleaning and Maintenance
- Financing Assistance
- Panel Installation
- System Decommissioning
- Permit Assistance
- Consultation
- Grid-Tied Solar System
Elevated Independent Energy
- Free Quotes
- Clear Pricing Policy
- Informative Resources
- Limited information available on website
Services Offered
- Panel Installation
- Off-Grid Solar Systems
- Cleaning and Maintenance
- Battery Storage
- Solar Panel Upgrades
- System Decommissioning
Roper Roofing & Solar
- Free Quotes
- Reliable Customer Support
- Informative Resources
- Limited information available on website
Services Offered
- Panel Installation
- Cleaning and Maintenance
- Skilled Repairs
- Financing Assistance
Cascade Solar & Electric
- Free Quotes
- Clear Pricing Policy
- Reliable Customer Support
- Limited information available on website
Services Offered
- Cleaning and Maintenance
- Skilled Repairs
- Panel Installation
Apex Solar Solutions
- Reliable Customer Support
- Clear Pricing Policy
- Free Quotes
- Informative Resources
- Limited information available on website
Services Offered
- Permit Assistance
- Panel Installation
- Financing Assistance
Lessar Energy
- Free Quotes
- Clear Pricing Policy
- Reliable Customer Support
- Informative Resources
- Limited information available on website
Services Offered
- Cleaning and Maintenance
- Permit Assistance
- Skilled Repairs
- Panel Installation
Elite Solar
- Free Quotes
- Clear Pricing Policy
- Informative Resources
- Reliable Customer Support
- Limited information available on website
Services Offered
- Consultation
- Panel Installation
Methodology: How We Ranked the Best Solar Companies in Longmont
EcoWatch's solar experts analyzed each solar company in Longmont based on criteria such as its reputation in the industry, customer reviews, services, warranty coverage and financing. Using this solar methodology, we used the data we collected to rate and rank each company and narrow down our picks for the best solar companies in Longmont
Below are some the criteria we examined specifically for Colorado solar companies
- Brand reputation and certifications (20%): We take each company's Better Business Bureau (BBB) score into consideration, as well as how long the installer has been in business (at least 5 years is required, 10 preferred) and what type of solar certifications it holds.
- Customer reviews (20%): Trust is a top priority at EcoWatch, so we take customer experience under close consideration. We scour different review sites and customer testimonials when ranking our top solar companies, checking sites such as Trustpilot and Google Reviews. We also consider any potential complaints or lawsuits filed against these companies and award or remove points accordingly.
- Warranty (20%): A company earns a perfect score in this category if it offers 25-year warranties that cover performance, product and workmanship. The industry standard that we measure companies against is 25-year product and performance warranties, along with a 10-year workmanship warranty. We also look closely into the track record of the post-installation support each company provides in terms of honoring its contracts
- Solar services (10%): All of the companies we review install solar panels, but we award companies higher points if they offer additional services for customers, like battery installation, energy-efficiency audits, and EV chargers.
- Pricing and financing (10%): It's hard to get exact quotes for solar projects, but we use marketplace research to determine how each company prices its equipment and installation services. Additionally, companies that offer more help for panel financing — like in-house loans, leases, or PPAs — score higher than those that don't.
- Availability (10%): The bigger the service area, the higher the company will score.
- Transparency and accessibility (5%): Solar installers that offer free consultations and easy contact methods score higher in this category.
- Environmental, social and corporate governance factors (5%): A company earns a perfect score in this category if it offers public data disclosure, addresses end-of-life (EOL) products or processes, and demonstrates a commitment to uplifting the communities that it serves.
The Cost and Benefits of Solar in Longmont
The cost of installing a solar panel system has dropped immensely over the past few years, but it’s still a large investment for most homeowners.There are several factors you should consider when trying to determine costs and your potential savings, such as:
- How much sunlight your roof gets: This, plus how your roof is set up, affects affect how much electricity your solar panels can produce.
- The type and model of solar panels you’re thinking of getting: More efficient models are more costly, so that will influence your budget for your solar project.
- Incentives: The federal solar investment tax credit, which everyone in the U.S. is eligible for, lets you deduct 0 of the cost of your solar system installation from your federal taxes. Plus, not including incentives, you can save about $19,000 over 20 years on your energy bills.
- How much electricity your home consumes: Homes that use plenty of power each month may call for more solar panels and, consequently, be more expensive, but will also enjoy more savings over time.
There are many good benefits of solar despite the upfront cost of installation. It can help the environment and your wallet. In addition, it can boost the value of your home, resulting in even more benefits if you want to sell your home later.
Solar Savings Calculator for {{ solarcalc.name }}
For an idea of both how much you could save and help protect the Earth by installing solar panels, you can play around with the calculator below. You can also view our solar panel cost guide for Longmont, CO.
| {{ solarcalc.time_period|number:0 }} -year savings | {{ solarcalc.total_savings()|currency }} |
| Estimated cost | {{ solarcalc.array_cost() | currency }} |
| Estimated incentives | {{ solarcalc.incentive_savings() | currency }} |
| Payback period | {{ solarcalc.payback_period()|number:1 }} years |
| CO2 emissions prevented | {{ solarcalc.CO2_total()|number:0 }} lbs |
| Miles driven equivalent | {{ solarcalc.CO2_total()/0.78|number:0 }} mi |
Switching to solar in {{ solarcalc.name }} can save you {{ solarcalc.total_savings() | currency }} over the course of {{ solarcalc.time_period|number:0 }} years.
Solar Incentives in Longmont
In order to increase the number of homes and businesses that use solar power, incentives are offered by the government – and even some utility companies – to help make going solar more economical and accessible.When you install solar panels, you can take advatage of the federal tax credit, or ITC. This credit currently lowers your tax bill by 0 of the cost of your solar panels. Plus, there may often be some state and city incentives that you can use to further cut back on the cost of solar of solar panels. Take a look at our article on solar incentives to find out what incentives you can take advantage of.
Environmental Impact of Switching to Solar in Longmont
A lot of people want to do their part for the planet, which often is the primary reason for installing a solar system.But how much can switching to solar actually affect the environment? In a city like Longmont where commute times can be pretty long, going solar can help help reduce the carbon footprint of being on the road a lot.In fact, if you adopt solar power, you could look forward to lowering your carbon dioxide emissions by about 100 pounds each year. Since solar energy is renewable and makes electricity without releasing carbon emissions, installing solar panels is one easy step you can take to help the environment.
EcoWatch's Longmont, CO Solar Company Rankings FAQs
Which solar company is the best in Longmont?
In Longmont, Vanguard Solar Services is the top local solar company. Our team of experts rates it 5.00 stars, so it's a solid choice if you're planning to add solar panels to your house.
What are the best and worst things about solar power?
A few of the biggest pros are that it reduces your electricity bills, it’s environmentally friendly, and it can provide a decent return on your investment (ROI). The most notable cons are that solar panels don’t produce electricity at night, there is a high upfront cost and solar panels can look clunky on your roof.
How long does it take to see a return on your investment after installing solar panels?
Solar panels generally pay for themselves in about 14.3 years, but your solar payback period will vary depending on your utility costs. The more your typical energy bill, the quicker your solar panel system will pay for itself.
How long do solar panels last?
On average, solar panels can last about 25 to 30 years. Some even last up to 50 years, but efficiency decreases by about 0.8% each year. You can choose to replace them sooner if you want to maintain a higher amount of energy production.
Our goal is to reach as many people as we can with sensible solutions like solar energy. Our team of full-time local researchers collects solar price and installation data for every city in America then compiles it to create these digestible city guides. If you want to read our solar expert’s opinion on the top solar companies featured here, follow this link.